I highly recommend this one for face structure.
Caricature:
For a source that has endless images to parse from... porn is weirdly hard to steer without a list of pornographic terms to push for specifically intended shapes.
The trials with this one took considerably longer than the others to figure out, so I'll just post some of the interesting ones here and links for the collection at the bottom.
[1][2][3]
Ę̵̚x̸͎̾i̴͚̽s̵̻͐t̷͐ͅe̷̯͠n̴̤̚t̵̻̅i̵͉̿a̴̮͊l̵͍̂ ̴̹̕D̵̤̀e̸͓͂t̵̢͂e̴͕̓c̸̗̄t̴̗̿ï̶̪v̷̲̍é̵͔
TC, do Lusst'ghaa, you might like those results
I'll add it to my list of prompt challenges, some quick test runs are mostly throwing plant forms and random stuff at me. Google shows this as the potential pallet so it could end up worth it, but it seems like it's going to need supplementary words to get it going correctly.
Ę̵̚x̸͎̾i̴͚̽s̵̻͐t̷͐ͅe̷̯͠n̴̤̚t̵̻̅i̵͉̿a̴̮͊l̵͍̂ ̴̹̕D̵̤̀e̸͓͂t̵̢͂e̴͕̓c̸̗̄t̴̗̿ï̶̪v̷̲̍é̵͔